800MXZ Posted November 22, 2003 Report Posted November 22, 2003 I have recently purchased my first banshee (have owned a 250r for a long time) and have a question for all of you. The engine has some serious mods, such as Fatty's, White Brother' intake system (bigger carbs, bottle, billet intake), RAD valves, and I assume porting by how it runs. Now, the clutch hooks great in 1st and 2nd, but once powerband is reached in anything high, it slips. It has a hinson basket on it (should it "float"?) and the disks seem to have allot of material. I want to know, what kind of clutch system would be recomended to get it to work. I dont want to spend the cash to go with a lock up, so what should I do? It allready has 3 stiff springs and 3 stock looking springs. Do you think it is just worn out? I have adjusted the calbe, and took the cable tension off, adjusted the adjustment in the middle of the spring cover, and it is better, but not fixed. Also, the kid I got it from only ran a 15/40 automotive oil, nothing designed for wet clutch use. I have a gallon of honda GN4 here, but I am not wasting it just to drain it if I have to replace. Any advice apreciated. Quote
Blacksmith Posted November 23, 2003 Report Posted November 23, 2003 The first thing I would do is try 6 stiff springs. If it still slips, then it is time for new clutch. Quote
raxen Posted November 23, 2003 Report Posted November 23, 2003 While your in there replacing springs pull the basket off and check the play between it and the gearing to see if it is in clearance. Quote
itsaripper Posted November 23, 2003 Report Posted November 23, 2003 While you have it tore down that far just go ahead and look at the clutch plates. If you are getting slippage there is prolly one or two of the fiber plates that have a lot of wear. If so new clutch time. If not put all six of the heaver springs on. Probably need a EZ pull leaver now. Quote
BitchenBanshee Posted November 23, 2003 Report Posted November 23, 2003 It can matter what oil was used. You don't want to use an energy conserving oil because it can cause the clutch to slip. The only automotive type oil that I have found that will work is Castrol GTX. Its the only one without the energy conserving stuff.. Like others said, try 3 stiffer springs.. If you dont want to buy the springs you can go to your local hardware store and puy a couple of washers that fit before the springs. The more washers.... The stiffer the springs.. The other thing that is a cause is glazing. If you fibers are in good shape you can take them out, and run them across some fine sandpaper to roughen them up a bit. This, springs, and a oil change should cure your problem! Quote
800MXZ Posted November 23, 2003 Author Report Posted November 23, 2003 Well, success. I dissasembled the clutch again, and following some backyard advice of a friend with 20+ years of motocross experience. He said to dissasemble, and take some emery to the steal disks to take off any glaze. Then his second idea was to soak the plates in "Trans-Medic", an automotive trans fix-it-in-a-bottle. He says it will swell the plates. I then switched to Valvolive 20-50 Bike oil (for wet clutches), and now I am hooked up. I am sure it is temperary, but it will let me do some riding while I work on other issues. Thanks! Dave Quote
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